HUMAN RESOURCE MANAGEMENT AND WORK MOTIVATION AFFECT ORGANIZATIONAL COMMITMENT OF OPERATIONAL EMPLOYEES: A CASE STUDY OF THE AUTOMOTIVE PARTS MANUFACTURING INDUSTRY IN AMATA CITY INDUSTRIAL ESTATE, CHONBURI PROVINCE

Abstract

The objectives of this study were to examine the levels of opinions regarding human resource management and work motivation, to analyze how human resource management affects organizational commitment, and to analyze how work motivation affects organizational commitment among operational-level employees in an automotive parts manufacturing company located in Amata City Industrial Estate, Chonburi Province. This quantitative research used questionnaires to collect data from 389 operational-level employees through snowball sampling. Statistical analyses included mean, percentage, standard deviation, and multiple regression analysis. The results showed that human resource management significantly affects organizational commitment of operational-level employees at the 0.05 statistical significance level, with the ability to predict organizational commitment by 4.4 percent. When considering individual aspects, recruitment and selection, and performance evaluation significantly affect organizational commitment. However, work motivation factors, including both motivator factors and hygiene factors, do not significantly affect organizational commitment of operational-level employees at the 0.05 statistical significance level.